NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit
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NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit
This robust rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit
Nº de artículo: 223408113

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny

89% of respondents would recommend this to a friend

Nº de artículo: 223408113
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This robust rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
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What Stands Out

Durable Design
The kit features a sturdy construction with a noise-reduced barrel, ensuring a quieter tumbling process ideal for family use, making it perfect for fun and engaging educational projects.
STEM Education
Encourages hands-on learning about geology and science, making it a fantastic STEM hobby kit that entertains while educating children and adults on rock properties and polishing processes.
Complete Kit
Includes everything needed: rocks, grit, and new GemFoam, ensuring a shiny finish while simplifying the polishing process, making it accessible for beginners and experienced hobbyists alike.

Detalles de producto

Shop NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit online at a best price in Uruguay. B086Z6ZB7R
  • Create your own gemstones with this hobby rock tumbler kit
  • Durable motor with time and speed control settings for easy operation
  • Includes 1/2 pound of rough rocks with 9 different types of gemstones
  • Comes with tumbler grit, strainer, and innovative GemFoam polishing foam
  • GemFoam gives incredible shine to the gems after final tumbling stage
  • High-quality educational toy backed by exceptional service
Brand NameBlue Marble
Age Range Description8 years and up
Educational ObjectiveGeology and Creative Thinking
Sub BrandNational Geographic
LanguageEnglish
Set NameHobby Rock Tumbler Kit
Maximum Age Recommendation120
Number of Packs1
Number of Items1
Unit Count1.0 count
UPC816448028830
Minimum Age Recommendation96.00
Country Of OriginChina
Included Components1 Professional Rock Tumbler, 227 grams of rough rocks with nine different types of gemstones inside, 5 jewelry fastenings, 4-stage tumbler grit, Strainer, new GemFoam rock polisher
Item Type NameHobby Rock Tumbler Kit - Rock Polisher for Kids & Adults
Model NumberNGHOBBYTUMBLER2
ManufacturerJMW Sales, Inc.
Manufacturer Part NumberNGHOBBYTUMBLER2
Item Dimensions33.3 x 12.7 x 20.7 centimetres
Item Weight1.9 Kilograms
ThemeGeology
Battery DescriptionNot required (mains powered)
Is Assembly RequiredNo
Material Typedefault_no_selection_value
Size13.86 x 5.04 x 8.15 inches (35.2 x 12.8 x 20.7 cm)
BrandBlue Marble
Age range (description)8 years and up
Item dimensions L x W x H33.3 x 12.7 x 20.7 centimetres

Who Should Buy?

Suitable For
  • Family Activities

    Fosters quality family bonding time while learning about geology and the polishing process of rocks.

  • STEM Education

    Ideal for kids and adults interested in science, teaching concepts related to geology and physical science through hands-on experience.

  • Hobby Enthusiasts

    Perfect for those who enjoy collecting and creating polished stones for crafts or as decorative items.

Not Suitable For
  • Advanced Users

    May not satisfy experienced rock tumblers looking for advanced features and faster results in rock polishing.

DESCRIPCIÓN DEL PRODUCTO

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Durable Noise-Reduced Barrel, Rocks, Grit & New GemFoam for a Shiny Finish, Cool Toys, Great STEM Hobby Kit

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Preguntas y respuestas de los clientes

  • Pregunta: What is included in the kit?

    Respuesta: The kit includes 1/2 pound of rough rocks with 9 different types of gemstones inside, 5 jewelry fastenings, tumbler grit, a strainer, and innovative new GemFoam polishing foam.
  • Pregunta: What makes this rock tumbler stand out?

    Respuesta: This rock tumbler kit stands out from others thanks to the reusable GemFoam rock polisher which gives your gems an incredible shine.
  • Pregunta: Is there a guarantee for this product?

    Respuesta: Yes, National Geographic proudly makes the highest quality science toys, and all their products are backed by exceptional service. If your experience isn't stellar, they'll make it right!

Blue Marble Science Kits NGHOBBYTUMBLER2 Editorial Review

The NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit has garnered positive feedback from users, highlighting its effectiveness and user-friendly design. Customers appreciate its durability, particularly the noise-reduced barrel, which allows for a more pleasant experience during the tumbling process. This feature stands out, especially for families, as it minimizes disruption while the tumbler is in use. Users have praised the kit for its comprehensive inclusion of rocks, grit, and the innovative GemFoam, which promotes better polishing results. Many customers, including both kids and adults, have found the tumbling process engaging and educational, making it a great activity for family bonding or personal hobby exploration. The kit not only successfully polishes a variety of stones but also teaches users about geology and science in an enjoyable way. However, some users pointed out that while the kit is meant for beginners, those with previous experience may find it to be somewhat simplistic. Still, the overall sentiment is that the kit is an excellent introduction to rock tumbling, with a solid performance that delights both novice and seasoned hobbyists alike. **

Customer Reviews & Ratings

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ventajas

  • Durable and noise-reduced barrel for a quiet tumbling experience.
  • Includes a variety of rocks, grit, and GemFoam for effective polishing.
  • Engaging and educational activity for both children and adults.
  • Great for family bonding or as a personal hobby.

Contras

  • May be too simplistic for users with prior rock tumbling experience.

Platform Trust & Buyer Confidence

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4.2/5 9477 reseñas
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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  • Limitaciones: Para los productos enviados al extranjero, ten en cuenta que cualquier garantía del fabricante puede no ser válida; las opciones de servicio del fabricante pueden no estar disponibles; los manuales del producto, las instrucciones y las advertencias de seguridad pueden no estar en los idiomas del país de destino; los productos (y los materiales que los acompañan) pueden no estar diseñados de acuerdo con las normas, especificaciones y requisitos de etiquetado del país de destino; y los productos pueden no ajustarse al voltaje del país de destino y a otras normas eléctricas (lo que requiere el uso de un adaptador o convertidor, si procede). El destinatario es responsable de asegurarse de que el producto puede ser importado legalmente al país de destino. Cuando hagas un pedido a Ubuy o a sus filiales, el destinatario es el importador registrado y debe cumplir todas las leyes y normativas del país de destino.
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características y beneficios

  • Create your own gemstones with this robust rock polisher.
  • Comes with a durable motor, time and speed control settings.
  • Features an improved, leak-proof barrel with a stainless-steel lid.
  • Includes 1/2 pound of rough rocks with 9 different types of gemstones inside, 5 jewelry fastenings, tumbler grit, a strainer, and innovative new GemFoam polishing foam.
  • Stands out from other kits with the reusable GemFoam rock polisher.
  • An educational STEM science kit backed by exceptional service.

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